A comprehensive evaluation of a monthly-based energy auditing tool through dynamic simulations, and monitoring in a renovation case study

Dermentzis, Georgios; Ochs, Fabian; Gustafsson, Marcus; Calabrese, Toni; Siegele, Dietmar; Feist, Wolfgang; Dipasquale, Chiara; Fedrizzi, Roberto; Bales, Chris

doi:10.1016/j.enbuild.2018.11.046

Cited by 25 publications

(3 citation statements)

References 25 publications

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“…The measurement [14] of data as a primary data collection is to understand the operation and event occurrence, calculate, explain, and validate the industry's energy consumption. The energy auditing tool [15] of Passive Home Planning Package (PHPP) and Transient System Simulation (TRNSYS) are used for energy estimation, and equivalent energy savings with greater accuracy and machine learning [16] algorithms are used for energy self-sufficiency. The effectiveness of energy audit diminishes with the number of employees increasing in the organizational size [17] in lighting, heating, insulation, and operations.…”

Section: Literature Reviewmentioning

confidence: 99%

Energy Efficiency Enhancement and Climate Change Mitigations of SMEs through Grid-Interactive Solar Photovoltaic System

Raj

Kirubakaran

2021

International Journal of Photoenergy

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According to the International Energy Agency’s estimation, Indian primary energy demand is expected to increase by about 1250 Mtoe and 1500 Mtoe by 2030. The 3 M management concept now changed into a 4 M management concept that includes energy management. In the case of energy management, the electrical energy sector assumes critical importance. An energy cost occupies nearly 30-40% of the production cost in small and medium-size enterprises (SMEs). Bureau of Energy Efficiency (BEE) has initiated a separate energy efficiency intervention to the SME’s, where the energy-efficient technologies, operational procedures, and proper awareness programs to SMEs are stated. This paper discusses the complete electrical energy audit on a small-scale Siddha and Ayurveda medicine industry. The traditional medicine manufacturing technologies make the process complex (process loads are intermittent/interlinked) during analysis. Hence, the detailed energy auditing/conservation studies on the power factor/harmonics were carried out without affecting Indian traditional medicine manufacturing technology. The postauditing design and installation of an intelligent controller by considering the intermittent/interlinked loads are carried out, and the effectiveness of the intelligent controller is ascertained with the energy conservation and the carbon emission reduction of SME. In addition, the climate change mitigation is ensured through the design and deployment of grid-interactive rooftop solar photovoltaic power plant using Solar Pro v4.5 (Photovoltaic System simulation software) with the power analysis, economic analysis and life cycle carbon emission of the proposed plant. The proposed solar photovoltaic power plant ensures energy self-sufficiency and sustainable energy utilization by carbon emission reduction on electricity utilization of SMEs.

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Section: Literature Reviewmentioning

confidence: 99%

Energy Efficiency Enhancement and Climate Change Mitigations of SMEs through Grid-Interactive Solar Photovoltaic System

Raj

Kirubakaran

2021

International Journal of Photoenergy

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“…The tool utilized preferences given by the user and then ranked different solution packages according to the importance given for different categories (environmental, economic, social). Another such tool was the monthly-based energy auditing tool presented by [7]. While not requiring much expert knowledge, it was able to estimate heating and cooling demands in several climates within 8% to 15% of a more detailed dynamic simulation tool, TRNSYS [8].…”

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confidence: 99%

Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

et al. 2019

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To mitigate the effects of climate change, the European Union calls for major carbon emission reductions in the building sector through a deep renovation of the existing building stock. This study examines the cost-effective energy retrofit measures in Finnish detached houses. The Finnish detached house building stock was divided into four age classes according to the building code in effect at the time of their construction. Multi-objective optimization with a genetic algorithm was used to minimize the life cycle cost and CO2 emissions in each building type for five different main heating systems (district heating, wood/oil boiler, direct electric heating, and ground-source heat pump) by improving the building envelope and systems. Cost-effective emission reductions were possible with all heating systems, but especially with ground-source heat pumps. Replacing oil boilers with ground-source heat pumps (GSHPs), emissions could be reduced by 79% to 92% across all the studied detached houses and investment levels. With all the other heating systems, emission reductions of 20% to 75% were possible. The most cost-effective individual renovation measures were the installation of air-to-air heat pumps for auxiliary heating and improving the thermal insulation of external walls.

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“…The calibrated ISO 13790:2008 delivers results significantly identical to the dynamic model while the non-calibrated fails. Dermentzis, et al, (2019) evaluated an energy auditing tool (PHPP) against TRNSYS for a set of buildings and climates. The results show that the average deviation between the tools is 8% for the heating demand and 15% for the cooling demand.…”

Section: Introductionmentioning

confidence: 99%

Comparison Of Simulation Results For A Reference Office Building – Analysis Of Deviations For Different BES Tools

Vries

Magni

Ochs

et al.

Building Simulation Conference Proceedings

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The model of the reference office building, reported in IEA SHC Task 56, is implemented by different experts in building simulations, with different tools (i.e. dynamics simulation tools such as EnergyPlus, TRNSYS, CarnotUIBK, ALMAbuild, DALEC, Modelica and quasi steady state calculation tool such as PHPP). The aim is to set up reference models for (virtually) testing different solar passive and solar active façade systems. Hence, identifying deviations between the resulting energy balance for heating and cooling of the used tools due to different levels of detail of their models is of great importance, while in the same time, trying to get rid of the user influence was experienced as a real challenge. It can be concluded that even considering a relatively simple case study, it is hard to reach a good agreement between different tools and an additional calibration phase is necessary. In particular, it was found that the resolution of the window model can lead to considerable differences. As a perspective, it seems to be a challenge if the building modelling is entrusted to non-expert users (e.g. from Building Information Modelling to Building Energy Modelling, where BIM-to-BEM interoperability issues might arise and affect the simulation results).

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A comprehensive evaluation of a monthly-based energy auditing tool through dynamic simulations, and monitoring in a renovation case study

Cited by 25 publications

References 25 publications

Energy Efficiency Enhancement and Climate Change Mitigations of SMEs through Grid-Interactive Solar Photovoltaic System

Energy Efficiency Enhancement and Climate Change Mitigations of SMEs through Grid-Interactive Solar Photovoltaic System

Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

Comparison Of Simulation Results For A Reference Office Building – Analysis Of Deviations For Different BES Tools

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